Q. The unit of length, velocity and force are doubled. Which of the following is the correct change in the other units?

2343 205 Physical World, Units and Measurements Report Error

A

Unit of time is doubled

B

Unit of mass is doubled

C

Unit of momentum is doubled

D

Unit of energy is doubled

Solution:

$p = F \times t$
$p^{'} = 2 F \times t$
$p^{'} = 2 p$